Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f415cc079a5953b…

MALICIOUS

PDF

38.8 KB Authoring application: Adobe PDF Library 9.0
MD5: fe270d995b0965fdcbe9f74099f2dba6 SHA-1: e3255223bc870183f1dc06d902ed098d1cfb3779 SHA-256: 4f415cc079a5953ba685c5a3ea05c6ecdd75394db01e6775959d722fb1047a5a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent. The document body, though heavily obfuscated, contains references to the same URLs found in the heuristics, suggesting a coordinated effort to redirect users to potentially malicious sites.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://mowerok.com/uploads/1/3/0/6/130620887/zulibuzo_zexiwolaf.pdf
    • http://tripandsip.org/uploads/1/3/0/7/130738984/7971550.pdf
    • http://journeysinsixth.com/uploads/1/3/0/5/130589409/jozamu.pdf
    • http://kiemtratenmien.net/uploads/1/3/0/4/130435877/f4257374cde3a.pdf
    • http://waygonebook.com/uploads/1/3/0/7/130739061/1614280.pdf
    • http://boldexpressions-testwebsite.com/uploads/1/3/0/4/130435577/suvixikujaxevexevefi.pdf
    • http://waldenconstructioncompany.com/uploads/1/3/0/6/130603749/b267c4b.pdf
    • http://iteropartnerdentallaboratory.com/uploads/1/3/0/5/130543488/3edb381978c2.pdf
    • http://cedarlanesucculents.com/uploads/1/3/0/5/130550949/d52f5a7ae7dfb.pdf
    • http://allergy.mediutopia.com/uploads/1/3/0/6/130604808/130604808.html#toothpaste+for+gum+disease+uk

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f3.bin
28994f4b6b46fa91cf6594db08886356034cbe37f0016446c2cef4bdfabe65d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F3 7876 bytes

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